Lenovo — Worst service by lenovo service centre (mobi quest hyderabad)

Address:	Hyderabad, Andhra Pradesh, 50032
Website:	servicecentre.co/company/lenovo-mobile-service-centre-kukatpally-hyderabad

I purchased lenovo vibe s1 from online amazon (seller: cloudtail) store, unfortunately that mobile got an issue with the display, i was contacted to lenovo service centre suggested by lenovo customer care, which is mobi quest in kphp colony hyderabad city, it covers in warranty, i have submitted (25th aug 2016) there, they promised me it will repaired in 10 to 15 days max, but till date not provided eta, and they replied it was getting delay with delivery service centre, i am really frustrated with the lenovo service, they are not giving it back, almost 40 days till now, please help me in this issue, no body responded from service centre or lenovo company side. i have escalated to maximum contacts found in internet, no one given response. please do needful help. this is my contact number [protected]. my email id : [protected]@gmail.com.
Ervice centre address:
Mobi quest no, 14-24-1 p. no 1, mig-1, 1st floor, nyr chamber, kphb colony main road, kukatpally, hyderabad-500072
Telephone:[protected].
Manager: [protected] (ashok)
Reginal manager: [protected] (rammurthy)
Http://servicecentre.co/company/lenovo-mobile-service-centre-kukatpally-hyderabad
[protected]@gmail.com.
My complain job sheet number: soino[protected]